package club.baimahu.pencil.util;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

@Component
public class SpringBeanUtil implements ApplicationContextAware {
	
	private static ApplicationContext applicationContext;

	@Override
	public void setApplicationContext(ApplicationContext applicationContext)
			throws BeansException {
		SpringBeanUtil.applicationContext = applicationContext;
	}

	public static <T> T getBean(String beanName, Class<T> requiredType) {
		return applicationContext.getBean(beanName, requiredType);	
	}
	
	@SuppressWarnings("unchecked")
	public static <T> T getBean(String beanName) {
		return (T) applicationContext.getBean(beanName);
	}
	
	public static <T> T getBean(Class<T> requiredType) {
		return applicationContext.getBean(requiredType);
	}
}
